feature: 1. Keep the sheets clean and tidy to prevent the sheets from moving or falling off. 2. The surface is smooth and polished, not easy to scratch the bed sheet. 3. The Y-shaped entry design is easy to put in the bed sheet, which is convenient for the bed sheet to be placed and kept in place, 4. No need to flip the mattress, suitable for all kinds of convex edge mattresses. 5. Installation method: Insert the card into the mattress from the gap on the side of the Y-shaped entrance, and then slide it horizontally. Package Quantity: 10pcs per set, the sheet holder holds sheets in place and holds them tightly on the bed. It is only suitable for all kinds of mattresses with raised edges, not too thick. This sheet clip can hold the sheet in place and lock it tightly, it won't come loose easily, keep your sheets clean and crease-free every day. You can easily attach the fasteners without moving the mattress. Material: ABS hard plastic, not bendable. Can be used as a snack holder.